Window tightener and holder.



No. 685,309. Patented ocpz, |901.

H. n. TnEFnv. y WINDUW TIGHTENER AND HOLDER.

(Application led Oct. 5, 1900.) (no Model.)

v vWITNESSES.

"fj m INVENTOR. j@t

. UNITED STATES PATENT OFFICE.

HARRY D. TREEEY, oF BRIDGEPOET, CONNECTICUT.

WINDOW TIGHTENER AND HOLDER.

l SPECIFICATION forming part of Letters Patent N0. 685,309, datedOctober 29, 1901.

l Application led October 5, 1900. Serial No. 32,173. (No modela To @ZZwhom it' may concern,.-

Beit known that I, HARRY D.TREFRY, a cilizen of the United States,residing at Bridgeport, county of Fairfield, State of Connecticut, haveinvented a new and useful Window Tightener and Holder, of which thefollowing is a specification.

My invention has for its object to provide mea-ns equally applicable toold or new windows and which will be wholly concealed from view on bothsides of the Window, with the exception of two finger-pieces, wherebythe upper sash may be pressed against the partingbead, thereby makingsaid sash practically air-tight and effectually excluding dust andmoisture without the use of weather-strips or packing of any kind,without interfering to the slightest extent with either inside oroutside screens or blinds, and without adjustment of either inner orouter beads, so that the sash will be left perfectly free and may beraised or lowered without difficulty, the mechanism, moreover, beingadapted for use upon single unbalanced sashes--for example, inrailway-cars-to lock the sash in any desired position. It will of coursebe understood that it is required in devices of this character that theparts be simple and inexpensive to make, that the device as a whole beadapted for convenient attachment and without the use of special toolsor the requirement of special skill in the operator, that the devicerequire no change whatever in the construction of the sashes or thecasings therefor, and, furthermore, that but little cutting away of woodbe required and what there is such as may be done with the simplesttools.

In'order to accomplish the desired results, l have devised the simpleand novel windowtightener which I will now describe, referring to theaccompanying drawings, forming part of this specification, and usingreference characters to designate the several parts.

Figure 1 is a vertical section of the casing Aof a window, showing theapplication of my invention to a single sash, which may be unbalanced,the cams being in the non-tighten-- I wish it distinctly understood thatthe special structure of thesashes and the casings is wholly unimportantso far as the principle of my invention is concerned, my invention beingapplicable to sashespand casings 'of any ordinary or preferredconstruction. Without going into the details of construction, I willindicate the sash by 2l and the casing by 22. As the beads areinvolvedin the application of my invention, I will indicate them byspecilic reference characters, although it should be understood that theshape, size, or design of these beads is of n o importance whatever sofar as the principle is concerned.

23 denotes the inner bead, and 24 the outer bead.

The tightening devices consist, essentially, of cams 39, which arepivoted to the casings and are provided with finger-pieces 40 forconvenience in operation, and cams 4l, also pivoted to the casings andconnected to cams 39 by means of rods 42. These cams in practice arepreferably pivoted to plates 43,which may or may not be recessed intothe casings.

In order to avoid cutting away the wood of the casings, plates 43 may besecured to the face of the casings without recessing, and the innerbeads may be cut away on their inner faces (not shown) to receive thecams and the connecting-rods, a slot 45 beingl provided, through whichthe linger-piece extends. This finger-piece upon each side rail of thelower sash and the slot in the inner bead through which it extends arethe only indications of my novel tightening device that are visible uponthe inner side of the window.

46 denotes plates which may or may not be let into the faces of the siderails of the lower sash for engagement by the cams. It will be notedthat the engaging surfaces of the cams are so located relatively to thepivotal points thereof, which are specifically indicated by 47, as notto hold the sash against upward movement-what is to say, the cams are soshaped that when the finger-pieces are raised the four cams will bepressed evenly against the side rails of the sash and will press itagainst the parting-bead with any force that may be desired, and if thesash is raised will hold it in a raised position. Any upward movement ofthe sash, however, will actto release the cams without. manipulation ofIco the finger-piece. This result I accom plish by so shaping the camsthat the long radii thereof will be in engagement with the side railswhen the linger-pieces are raised, the under sides of the cams curvinginward-that is to say, the radii of the cams decrease from the pivotalpoints downward, so that when the engaging points are raised either bymovement of the cams or by raising the sash the cams will release theirhold upon the sash and permit it to slide up freely, locking the sash inposition again, however, the moment the upward pressure is released,downward movement of the sash or upward movement of the finger-piecesacting to throw the engaging points of the cams downward and to pressthe sash against the parting-bead or to hold it in place if left in araised position. It is required, of course, that the connectingrods bepivoted to the corresponding cams 39 and 4l in such a manner that whenacam 39 is moved by its linger-piece the corresponding cam 41 will movein unison therewith, so that the pressure of the two cams on each sideof the sash will be uniform. It will be noted that my novel constructioncalls for no marrng of either sash or removal of wood therefrom. Plates46 are merely bearingplates for the cams and may he omitted, ifpreferred. The essential feature of the invention as a whole is that thesash is pressed outward against the parting-beads at two points in eachside rail of each sash.

Having thus described my invention, I claim-- In a window, thecombination with the casing, the lower sash, the parting-beads and innerbeads, of cams 39 and 4l pivoted to the casing and a connecting-rodpivoted to the cams upon each side of the casing so that they will movein unison, said cams 39 having fingerpieccs for convenience inoperation, and the inner beads having cut-away portions which receivethe cams and the connecting-rods and slots through which thefinger-pieces pass.

In testimony whereof I alix my signature in presence of two witnesses.

HARRY D. TREFRY.

Witnesses:

A. M. Woosrnn, S. W. ATHERToN.

